2-(Isopropylamino)ethanol-based solvent for carbon dioxide (CO₂) capture from coal-fired flue gas was evaluated through pilot plant tests and process simulation. A 10 t_-CO2/d-scale pilot plant was operated at various conditions of liquid-to-gas ratio and steam feed rates. Also, a process simulation was carried out to estimate CO₂ recovery and the thermal energy requirement for the chemical absorption process. As a result, the minimum energy requirement of the solvent for CO₂ capture was 3.0 GJ/t_-CO2 at 90% CO₂ recovery in the pilot plant operation. The process simulation also showed the potential of the solvent which could reduce the energy requirement by 30% compared with a monoethanolamine (MEA) 30 wt% aqueous solution.